Created
November 11, 2017 17:33
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Akka HTTP Low-Level Server-Side API Sample
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| import akka.actor.ActorSystem | |
| import akka.event.Logging | |
| import akka.http.scaladsl.Http | |
| import akka.http.scaladsl.model.HttpMethods._ | |
| import akka.http.scaladsl.model._ | |
| import akka.stream.ActorMaterializer | |
| import akka.stream.scaladsl.Sink | |
| import scala.concurrent.Future | |
| trait LowLevelAPIRoutes { | |
| implicit val system = ActorSystem() | |
| implicit val materializer = ActorMaterializer() | |
| lazy val log = Logging(system, classOf[LowLevelAPIRoutes]) | |
| val requestHandler: HttpRequest => HttpResponse = { | |
| case HttpRequest(GET, Uri.Path("/"), _, _, _) => | |
| HttpResponse(entity = HttpEntity( | |
| ContentTypes.`text/html(UTF-8)`, | |
| "<html><body>Hello!</body></html>" | |
| )) | |
| case r: HttpRequest => | |
| r.discardEntityBytes() | |
| HttpResponse(404, entity = "Unknown resource!") | |
| } | |
| } | |
| object LowLevelServerAPISample extends App with LowLevelAPIRoutes { | |
| implicit val executionContext = system.dispatcher | |
| val host = "localhost" | |
| val port = 8080 | |
| val serverSource = Http().bind(interface = host, port = port) | |
| val bindingFuture: Future[Http.ServerBinding] = | |
| serverSource.to(Sink.foreach { connection => | |
| println("Accepted new connection from " + connection.remoteAddress) | |
| connection handleWithSyncHandler requestHandler | |
| }).run() | |
| bindingFuture.failed.foreach { ex => | |
| log.error(ex, "Failed to bind to {}:{}!", host, port) | |
| } | |
| } |
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